MERITS AND DEMERITS OF METALLIC STENT FOR TREATMENT OF PANCREATIC DUCT STRICTURES IN PATIENTS WITH CHRONIC PANCREATITIS

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Abstract

ABSTRACT

We inserted a metallic stent into the strictures of the main pancreatic duct in two patients with calcified chronic pancreatitis and severe abdominal pain not to be relieved using narcotics. One patient was a 39-year-old male, and the other was 49-year-old male. Their etiology of chronic pancreatitis was alcoholism. We inserted a Strecker stent, 7 mm in diameter and 6 cm in length, for achieving long-term patency than plastic stent. In one patient, the stent was obstructed half a year after the first treatment and pancreatic calculi recurred with abdominal pain. After endoscopic extraction of pancreatic stone and balloon dilatation of the stent was performed three times, a plastic stent was inserted in the metallic stent twice. Even if he was performed nerve block twice, he was administered narcotics for treatment of continuous abdominal pain. In the other patient, the stent was obstructed 1.5 years after insertion and pancreatic calculi recurred with abdominal pain. He was treated with extracorporeal shock-wave lithotripsy for pancreatic stone, abdominal pain continued. He underwent pylorus preserving pancreato-duodenectomy 6 years after the first stenting, because the obstructed metallic stent could not be removed. Metallic stent should not be chosen for treatment of pancreatic duct stricture.

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